Dyfyniad APA

FAO. (1977). Soil conservation and management in developing countries. Rome: FAO.

Dyfyniad Arddull Chicago

FAO. Soil Conservation and Management in Developing Countries. Rome: FAO, 1977.

Dyfyniad MLA

FAO. Soil Conservation and Management in Developing Countries. Rome: FAO, 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.